POST response caching does not work in nginx

nginx caching http-post nginx-location nginx-cache

It turned out that the following directive (which was defined globally) prevented caching from working:

proxy_buffering off;

When I override it under location config with proxy_buffering on;, caching starts working.

So, to make caching work with POST requests, we have to do the following:

Output Cache-Control: public, max-age=10 header on the server
Add proxy_cache_path config and location config in nginx (examples are given in the question text)
Make sure that proxy_buffering is on for the location on which we want to have caching enabled.

CodeHunter